Cheap flights from Portland to Great Britain

View AU$527 flight on Thu, 11 Sep. 2025Opens in a new window

Popular airlines from Portland to Great Britain

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Portland (PDX) to Great Britain (LON)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 19 Aug. - Tue, 26 Aug.
PDX
Portland
LGW
London
AU$779 Return, found 5 days ago
AU$779
Return
found 5 days ago
Select Delta flight, departing Tue, 19 Aug. from Portland to London, returning Tue, 26 Aug., priced at AU$779 found 5 days ago
Virgin Atlantic
Tue, 19 Aug. - Tue, 26 Aug.
PDX
Portland
LGW
London
AU$779 Return, found 5 days ago
AU$779
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 19 Aug. from Portland to London, returning Tue, 26 Aug., priced at AU$779 found 5 days ago
Delta
Tue, 19 Aug. - Tue, 26 Aug.
PDX
Portland
LGW
London
AU$819 Return, found 5 days ago
AU$819
Return
found 5 days ago
Select Delta flight, departing Tue, 19 Aug. from Portland to London, returning Tue, 26 Aug., priced at AU$819 found 5 days ago
KLM
Tue, 19 Aug. - Tue, 26 Aug.
PDX
Portland
LGW
London
AU$858 Return, found 5 days ago
AU$858
Return
found 5 days ago
Select KLM flight, departing Tue, 19 Aug. from Portland to London, returning Tue, 26 Aug., priced at AU$858 found 5 days ago
United
Tue, 19 Aug. - Tue, 26 Aug.
PDX
Portland
LHR
London
AU$914 Return, found 5 days ago
AU$914
Return
found 5 days ago
Select United flight, departing Tue, 19 Aug. from Portland to London, returning Tue, 26 Aug., priced at AU$914 found 5 days ago
Air Canada
Thu, 7 Aug. - Mon, 11 Aug.
PDX
Portland
LHR
London
AU$1,085 Return, found 1 day ago
AU$1,085
Return
found 1 day ago
Select Air Canada flight, departing Thu, 7 Aug. from Portland to London, returning Mon, 11 Aug., priced at AU$1,085 found 1 day ago

Find the cheapest month to fly from Portland (PDX) to London (LHR)

October is typically the cheapest month to fly

From AU$765 - AU$1,688 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.